89797642655 has 16 divisors (see below), whose sum is σ = 126479461440. Its totient is φ = 59911322112.

The previous prime is 89797642603. The next prime is 89797642691. The reversal of 89797642655 is 55624679798.

It is a cyclic number.

It is not a de Polignac number, because 89797642655 - 2¹⁶ = 89797577119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34669610 + ... + 34672199.

It is an arithmetic number, because the mean of its divisors is an integer number (7904966340).

Almost surely, 2^89797642655 is an apocalyptic number.

89797642655 is a deficient number, since it is larger than the sum of its proper divisors (36681818785).

89797642655 is a wasteful number, since it uses less digits than its factorization.

89797642655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69341858.

The product of its digits is 228614400, while the sum is 68.

The spelling of 89797642655 in words is "eighty-nine billion, seven hundred ninety-seven million, six hundred forty-two thousand, six hundred fifty-five".